CN214704263U

CN214704263U - Color correction processing device and color correction system of external flash lamp

Info

Publication number: CN214704263U
Application number: CN202120192649.3U
Authority: CN
Inventors: 曾伟玲
Original assignee: Yiyou Co Ltd
Current assignee: Yiyou Co Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-12
Anticipated expiration: 2031-01-22

Abstract

The application provides a color correction processing device and a color correction system of an external flash lamp. The color correction processing device comprises a first communication unit, a color correction processing unit and a second communication unit. The first communication unit is used for receiving digital quantity data of the light-emitting information of the external flash lamp; the color correction processing unit is electrically connected with the first communication unit so as to receive the digital quantity data of the luminous information through the first communication unit and perform color correction processing according to the digital quantity data of the luminous information to generate color correction result information; the second communication unit is used for being electrically connected with the external flash lamp and transmitting the color correction result information to the external flash lamp so as to correct the light emission of the external flash lamp. The color correction processing device can be used for correcting the color of the external flash lamp.

Description

Color correction processing device and color correction system of external flash lamp

Technical Field

The application relates to the technical field of flash lamps for shooting, in particular to a color correction processing device and a color correction system of an external flash lamp.

Background

With the development of mobile communication technology, mobile terminals play an increasingly important role in the life and work of people. Especially, some mobile electronic devices with a camera function, such as mobile phones, MP4, PDAs, notebook computers, etc., the camera function of these mobile terminals brings great fun to people's lives. The mobile terminal with the photographing function needs a light source, and needs artificial light to assist photographing except natural light, so that the artificial light source of the mobile terminal with the photographing function cannot meet the actual use requirement, and people often use an external flash lamp to assist photographing.

However, after the LED lamp bead in the external flash lamp is used for a long time, there is a deviation between the chromaticity and the luminous intensity, so that the actual luminous parameters such as the luminance and the chromaticity cannot reach the preset luminous parameters, and the expected light supplement effect cannot be achieved.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a color correction processing apparatus that can be used for color correction of an external flash.

In order to solve the technical problem, the following technical scheme is adopted in the application:

according to an aspect of the present application, there is provided a color correction processing apparatus including:

the first communication unit is used for receiving digital quantity data of the light-emitting information of the external flash lamp;

the color correction processing unit is electrically connected with the first communication unit so as to receive the digital quantity data of the luminous information through the first communication unit and perform color correction processing according to the digital quantity data of the luminous information to generate color correction result information;

and the second communication unit is electrically connected with the external flash lamp and is used for transmitting the color correction result information to the external flash lamp so as to correct the light emission of the external flash lamp.

According to an embodiment of the application, the first communication unit is electrically connected with a color correction detection device, and the color correction detection device is used for detecting light emitting information of the external flash lamp.

According to an embodiment of the present application, the first communication unit is electrically connected to a terminal device to obtain digital quantity data of the light emitting information from the terminal device.

According to an embodiment of the present application, the first communication unit includes a wireless communication unit to receive digital quantity data of the lighting information by wireless transmission;

and/or

The first communication unit comprises a first communication interface, and the first communication interface is electrically connected with the color correction processing unit and is used for electrically connecting color correction detection equipment or terminal equipment.

According to an embodiment of the present application, the second communication unit includes a wireless communication unit to send the color correction result information in a wireless transmission manner; and/or

The second communication unit comprises a second communication interface, and the second communication interface is electrically connected with the color correction processing unit and is used for electrically connecting the external flash lamp.

According to an embodiment of the application, the color correction processing apparatus further includes a first storage unit electrically connected to the first communication unit to store digital quantity data of the light emitting information.

According to an embodiment of the present application, the color correction processing apparatus further includes a second storage unit, and the second storage unit is electrically connected to the color correction processing unit to store the color correction result information.

According to an embodiment of the present application, the color correction processing apparatus further includes a burning unit, and the burning unit is electrically connected to the color correction processing unit and is configured to burn the color correction result information output by the color correction processing unit into the control chip of the external flash.

According to an embodiment of the present application, the color correction processing apparatus further includes a charging unit;

the input end of the charging unit is connected with a power supply, and the output end of the charging unit is electrically connected with the external flash lamp.

The color correction system of the external flash lamp comprises the external flash lamp, color correction detection equipment, terminal equipment and the color correction processing device;

the color correction detection device is used for detecting the light-emitting information of the external flash lamp and sending the light-emitting information to the terminal device; the terminal equipment processes the luminous information into digital quantity data of the luminous information and sends the digital quantity data of the luminous information to the color correction processing device; and the color correction processing device generates color correction result information according to the digital quantity data of the light-emitting information and sends the color correction result information to the external flash lamp, and the external flash lamp corrects the light-emitting according to the color correction result information.

According to an embodiment of the application, the terminal device comprises a data arrangement unit, wherein the data arrangement unit is used for receiving digital quantity data of the light-emitting information at the light-emitting information and arranging the digital quantity data to generate arrangement data of the light-emitting information;

the data arrangement unit is communicated with a first communication unit of the color correction processing device to transmit the arrangement data of the luminous information to the color correction processing unit of the color correction processing device.

According to an embodiment of the application, the terminal device further comprises a timing control unit, wherein the timing control unit is electrically connected with the external flash lamp to drive the external flash lamp to emit light in a preset timing sequence;

the time sequence control unit is also electrically connected with the color correction detection equipment, so that when the light-emitting unit emits light in a preset time sequence, the time sequence control unit controls the color correction detection equipment to detect the light-emitting information of the external flash lamp in the preset time sequence.

According to an embodiment of the application, the terminal device comprises a display unit, and the display unit is used for displaying a color correction control GUI interface so as to input a color correction control instruction.

The first communication unit is used for receiving digital quantity data of the light-emitting information of the external flash lamp; the color correction processing unit receives the digital quantity data of the luminous information through the first communication unit, and performs color correction processing according to the digital quantity data of the luminous information to generate color correction result information; and the second communication unit is used for electrically connecting with the external flash lamp and transmitting the color correction result information to the external flash lamp so as to correct the light emission of the external flash lamp. Therefore, the color correction processing device can be used for correcting the color of the external flash lamp.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a block diagram illustrating a circuit configuration of a color correction processing apparatus according to an example embodiment.

Fig. 2 is a block diagram of a circuit configuration of a color correction system of an external flash according to an exemplary embodiment.

The reference numerals are explained below: 10. an external flash lamp; 20. a color correction detection device; 30. a terminal device; 40 color correction processing means; 41. a first communication unit; 42. a color correction processing unit; 43. a second communication unit.

Detailed Description

While this application is susceptible of embodiment in different forms, there is shown in the drawings and will herein be described in detail only some specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the application and is not intended to limit the application to that as illustrated herein.

Thus, a feature indicated in this specification is intended to describe one of the features of an embodiment of the application and does not imply that every embodiment of the application must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

In the embodiments shown in the drawings, directional references (such as up, down, left, right, front, and rear) are used to explain the structure and movement of the various elements of the present application not absolutely, but relatively. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indication of these directions changes accordingly.

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

The preferred embodiments of the present application will be further described in detail below with reference to the accompanying drawings of the present specification.

The application firstly provides a color correction processing device which is used for correcting colors of an external flash lamp. Color correction can refer to matching the actual light-emitting parameters of the external flash lamp with the set light-emitting parameters; the consistency of the light-emitting parameters of each LED lamp bead in the external flash lamp can be adjusted.

Referring to fig. 1, in an embodiment, the color correction processing apparatus 40 includes a first communication unit 41, a color correction processing unit 42, and a second communication unit 43. The first communication unit 41 is used for receiving digital quantity data of the light-emitting information of the external flash lamp 10; the color correction processing unit 42 is electrically connected with the first communication unit 41 to receive the digital quantity data of the light-emitting information through the first communication unit 41 and perform color correction processing according to the digital quantity data of the light-emitting information to generate color correction result information; the second communication unit 43 is used for electrically connecting with the external flash lamp 10, and the second communication unit 43 transmits the color correction result information to the external flash lamp 10 so as to correct the light emission of the external flash lamp 10.

As can be seen from this embodiment, the color correction processing device 40 of the present application can be used for color correction of the external flash 10. Moreover, since the color correction processing unit 42 receives the digital quantity data of the light-emitting information through the first communication unit 41, related circuits for performing preliminary data processing on the light-emitting information, such as mode conversion, filtering, and the like, are reduced, which is beneficial to reducing the size of the color correction processing device 40, realizing miniaturization, and facilitating carrying by a user.

In one example, the first communication unit 41 is electrically connected to the color correction detection device 20 to acquire digital quantity data of the light emission information from the color correction detection device 20. Specifically, the light emission information of the light source unit is collected by the color correction detection device 20. The lighting information here includes one or more kinds of information of luminance, chromaticity, saturation, and the like. The external flash 10 may be used as a whole to collect the brightness, chromaticity, saturation, and other parameters. In another embodiment, the lighting information is that the flash lamp includes a plurality of LED light sources, and each of the LED light sources has one or more of parameters of brightness, chromaticity, saturation, and the like, and one or more of parameters of chromaticity and saturation. That is, in this embodiment, each LED light source is used as a minimum unit to perform emission correction on each LED in a targeted manner, so as to improve the accuracy of emission correction. When in detection, each LED light source can be made to emit light independently, so that the light emitting information of the LED light source can be acquired.

The color correction apparatus may include a color pickup unit, a data conversion unit, a filtering unit, and the like. The color pickup unit may include various types of photosensors according to an object to be corrected; such as a luminance sensor, a chrominance sensor, a color temperature sensor, etc. The light-emitting information collecting unit generally has a collecting window, and the collecting window is exposed on the surface of the color correction device. The collection window is disposed facing the light emitting surface of the external flash 10, so that the color pickup unit can receive the light emitted from the external flash 10. Here, the light emitted from the external flash 10 may be picked up a plurality of times. Illustratively, the external flash 10 is operated in a plurality of lighting modes to sample lighting information. The light emission mode here includes a flash mode, a model lamp mode, a normally on mode, and the like. In each mode, the lighting information is picked up at least once. The data conversion unit is used for converting the analog quantity of the sampled luminous information into corresponding digital quantity data. The filtering unit is used for filtering the input or the output of the data conversion unit so as to reduce noise interference.

The color correction detection device 20 may include a data arrangement unit. The data arrangement unit is connected with the analog-to-digital conversion circuit to carry out data arrangement on the digital quantity data of the collected luminescence information. The specific data arrangement mode may be determined according to a color correction algorithm, or may be arranged in a one-to-one correspondence according to the position arrangement of the LEDs in the external flash 10. In practice, the data arrangement unit may also be provided in the terminal device 30 electrically connected to the color correction detection device 20.

In another embodiment, the first communication unit 41 is electrically connected to the terminal device 30 to obtain digital quantity data of the light emitting information from the terminal device 30. Specifically, the color correction detection device 20 is electrically connected to the terminal device 30 to obtain digital quantity data of the light emitting information, and the terminal device 30 forwards the digital quantity data to the color correction processing apparatus 40. The data arrangement unit may be provided in the terminal device 30, and the terminal device 30 may arrange data.

In this embodiment, the electronic device performs sorting processing on the collected lighting information, and since data sorting requires a relatively high operation speed and storage capacity, the data sorting speed can be increased by using a powerful processor and a large storage capacity of the electronic device. More importantly, since the arrangement unit is not required to be arranged in the color correction detection device 20, the volume of the color correction device can be reduced, which is beneficial to improving the portability of the color correction detection device 20. Similarly, the arrangement unit is not required in the color correction processing device 40, so that the volume of the color correction processing device 40 can be reduced, which is beneficial to improving the portability of the color correction processing device 40.

In addition, the data conversion unit may be disposed in the terminal device 30, and the data conversion unit is connected between the data arrangement unit and the color correction detection device 20, so as to perform data conversion on the light emitting information sent by the color correction detection device 20, and then transmit the light emitting information to the data arrangement unit.

The terminal device 30 may be an intelligent terminal device 30, such as a mobile phone, a tablet, a notebook; the wearable device can also be an intelligent wearable device, such as an intelligent head-mounted device, an intelligent bracelet, an intelligent belt and the like.

The color correction processing device 40 has a data processing unit therein, and the data processing unit may store a color correction processing algorithm therein, and the color correction processing algorithm performs logical calculation on the arranged light emitting data, thereby producing color correction result information. The color correction result information may be an adjustment program or a specific light emission correction value.

Illustratively, in one example, the data processing unit includes a color correction chip having therein a correction coefficient matrix, and the arrayed sampling data is subjected to calculation processing based on the correction coefficient matrix.

Or, the preset parameter value is compared with the sampled emission information arrangement data to correct the driving current of the external flash 10, so that the corrected driving current drives the external flash 10 to enable the actual emission parameter of the flash to exactly match the set parameter.

In the first communication unit 41 mentioned in the above embodiments, specifically, the first communication unit 41 includes a wireless communication unit to receive digital quantity data of the light emission information from the terminal device 30 or the color correction detection device 20 by wireless transmission. The wireless communication unit may be built in the color correction processing device 40, or may be externally disposed outside the color correction processing device 40, such as an external USB wireless transceiver. The wireless communication unit comprises one or more of a WIFI module, a Bluetooth module, a Zig-Bee module and an infrared communication module. This embodiment improves the convenience of the communication of the color correction processing device 40 with the terminal device 30/color correction processing device 40.

In another embodiment, the first communication unit 41 includes a first communication interface, and the first communication interface is electrically connected to the color calibration processing unit 42 and electrically connected to the color calibration detecting device 20 or the terminal device 30. The first communication interface is one of a USB interface, a TYPE C interface, an RS232 interface and an RS485 interface. Here, there may be one or more of the first communication interfaces.

In the above embodiment, the color correction processing device 40 communicates with the external flash 10 through the second communication unit 43. The second communication unit 43 is electrically connected to the color correction processing unit 42 to transmit the color correction result information to the external flash 10 to correct the light emission of the external flash 10.

Here, the second communication unit 43 may include a wireless communication unit to transmit the color correction result information by wireless transmission. The wireless communication unit comprises one or more of a WIFI module, a Bluetooth module, a Zig-Bee module and an infrared communication module. This embodiment improves the convenience of the communication of the color correction detection device 20 with the electronic device.

In addition, the second communication unit 43 may further include a second communication interface, and the second communication interface is electrically connected to the color correction processing unit 42 and is electrically connected to the external flash 10. The second communication interface is one of a USB interface, a TYPE C interface, an RS232 interface and an RS485 interface.

In an embodiment, the color calibration processing apparatus 40 further includes a burning unit electrically connected to the color calibration processing unit 42 for burning the color calibration result information output by the color calibration processing unit 42 into the control chip of the external flash 10.

The burning unit can perform handshake communication with the external flash lamp 10 and meet related communication protocols to smoothly perform program burning, adjust the light-emitting control program of the original control chip, and adjust the driving current to the light source unit of the external flash lamp 10, thereby fundamentally correcting the problem of light-emitting effect deviation of the external flash lamp 10.

The burning unit and the color calibration processing unit 42 can be directly electrically connected or indirectly electrically connected, that is, the burning unit is electrically connected with the color calibration processing unit 42 through the communication unit. The burning unit can be arranged in the shell of the color correction device; or may be externally disposed on the housing of the color correction processing apparatus 40 to form a single physical module.

In an embodiment, the color correction processing apparatus 40 further includes a first storage unit electrically connected to the first communication unit 41 for storing digital quantity data of the light emitting information of the external flash 10 sent by the terminal device 30 or sent by the color correction detection device 20.

By arranging the first storage unit, the color correction processing device 40 can receive digital quantity data of a plurality of groups of luminous information at a time, so that the number of sampling data is increased, and the accuracy of color correction is improved.

In another embodiment, the color correction processing apparatus 40 further includes a second storage unit, and the first storage unit is electrically connected to the color correction processing unit 42 to store the color correction result information. In this embodiment, after the color correction processing unit 42 has generated the color correction result information, the color correction result information may not be immediately transmitted to the external flash 10, and may be transmitted to the external flash 10 at an appropriate time according to the user's requirement, so as to implement the final emission correction.

Here, the first storage unit and the second storage unit may include a ROM, a RAM, or the like, and may also be a storage medium such as a usb disk.

In one embodiment, the color correction processing device 40 further includes a charging unit; the input end of the charging unit is connected with a power supply, and the output end of the charging unit is electrically connected with the external flash lamp 10. The charging unit may specifically include a voltage conversion circuit, a current sampling circuit, and the like. The arrangement of the charging circuit enables the color correction processing device 40 to be used as an adapter, improves the versatility of the color correction processing device 40, and can provide diversified services for users.

The light emission information and the color correction result information only indicate the substantial meaning of the signal. In fact, during the signal transmission, changes in form can occur; for example, conversion between analog and digital quantities, transmission in a single signal or transmission in a packet format, etc., and is not particularly limited herein.

Referring to fig. 2, according to another aspect of the present application, a color correction system of an external flash 10 is further provided, which includes the external flash 10, a color correction detection device 20, a terminal device 30, and a color correction processing apparatus 40;

the color correction detection device 20 is used for detecting the light-emitting information of the external flash lamp 10 and sending the light-emitting information to the terminal device 30; the terminal device 30 processes the light emission information into digital quantity data of the light emission information and transmits the digital quantity data of the light emission information to the color correction processing means 40; the color correction processing device 40 generates color correction result information according to the digital quantity data of the light-emitting information and sends the color correction result information to the external flash lamp 10, and the external flash lamp 10 corrects the light-emitting according to the color correction result information.

Here, the color correction detection device 20 and the terminal device 30 may be connected by wire or wirelessly.

In one embodiment, the terminal device 30 includes a data arranging unit for receiving digital quantity data of the light emitting information at the light emitting information and arranging to generate arrangement data of the light emitting information; the data arrangement unit communicates with the first communication unit 41 of the color correction processing device 40 to transmit the arrangement data of the light emission information to the color correction processing unit 42 of the color correction processing device 40. That is, in this embodiment, the data arrangement unit is provided in the terminal device 30, thereby contributing to the downsizing of the color correction processing apparatus 40 and improving portability.

In one embodiment, the terminal device 30 includes a display unit for displaying a GUI interface for inputting the color correction control instruction. Specifically, the color correction application software is installed in the terminal device 30, and when the color correction application software is run, the color correction control GUI interface may be displayed on the display unit. The color correction control GUI interface has a plurality of controls for a user to issue a color correction start command, set a color correction parameter, select a color correction mode (collectively referred to as a color correction control command herein), and the like. The color correction control GUI interface may also have a display window to display the color correction process. The embodiment improves the man-machine interaction capability, and is convenient for a user to correct different parameters (brightness, chroma, saturation and the like) of the external flash lamp 10 according to the requirement of the user and to correct the parameters to target parameters meeting the requirement of the user. The color correction processing unit 42 performs a logical operation based on the sampled light emission information according to the color correction control instruction, thereby generating color correction result information.

In one embodiment, the terminal device 30 further includes a timing control unit electrically connected to the external flash 10 to drive the external flash 10 to emit light at a predetermined timing; the timing control unit is also electrically connected with the color correction detection device 20, so that when the light emitting unit emits light at a preset timing, the timing control unit controls the color correction detection device 20 to detect the light emitting information of the external flash 10 at the preset timing. The timing control unit may be generated according to a color correction control command received on the GUI of the electronic device.

Here, the timing control unit may issue a corresponding timing control signal according to the color correction control instruction. The timing control unit can issue timing instructions including the execution sequence of the light-emitting mode, the light-emitting frequency, the timing of the brightness change, the color change, etc. of the external flash 10. The setting of the time sequence control unit enables the acquisition time sequence and the light-emitting time sequence to have synchronism, so that the time sequence information corresponding to the acquired light-emitting information can be determined, and the correction accuracy is improved. In addition, the embodiment allows the correction detection device not to perform data acquisition when the external flash lamp 10 does not emit light, thereby being beneficial to reducing noise interference on the correction detection device and improving the accuracy of data arrangement; and is beneficial to saving energy.

Exemplary embodiments describe the present application, but it is understood that the terms used are words of description and illustration, rather than words of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A color correction processing apparatus, comprising:

2. The color correction processing apparatus according to claim 1, wherein the first communication unit is configured to communicate with a color correction detection device, and the color correction detection device is configured to detect emission information of the external flash.

3. The color correction processing apparatus according to claim 1, wherein the first communication unit is configured to communicate with a terminal device to obtain digital quantity data of the lighting information from the terminal device.

4. The color correction processing apparatus according to claim 1, wherein the first communication unit includes a wireless communication unit to receive digital quantity data of the lighting information by wireless transmission; and/or

5. The color correction processing apparatus according to claim 1, wherein the second communication unit includes a wireless communication unit to transmit the color correction result information by wireless transmission; and/or

6. The color correction processing apparatus according to claim 1, further comprising a first storage unit electrically connected to the first communication unit to store digital quantity data of the light emission information.

7. The color correction processing apparatus according to claim 1, further comprising a second storage unit electrically connected to the color correction processing unit to hold the color correction result information.

8. The apparatus according to claim 1, further comprising a burning unit electrically connected to the color correction processing unit for burning the color correction result information outputted from the color correction processing unit into a control chip of the external flash.

9. The color correction processing apparatus according to claim 1, further comprising a charging unit;

10. A color correction system of an external flash lamp, which is characterized by comprising the external flash lamp, a color correction detection device, a terminal device and the color correction processing device according to any one of claims 1 to 9;

11. The color correction system according to claim 10, wherein the terminal device comprises a data arrangement unit for receiving data of digital quantity of the lighting information at the lighting information and arranging to generate arrangement data of the lighting information;

12. The color correction system according to claim 10, wherein the terminal device further comprises a timing control unit electrically connected with the external flash lamp to drive the external flash lamp to emit light at a preset timing;

the time sequence control unit is also electrically connected with the color correction detection equipment, so that when the external flash lamp emits light in a preset time sequence, the time sequence control unit controls the color correction detection equipment to detect the light emitting information of the external flash lamp in the preset time sequence.

13. The color correction system according to claim 10, wherein the terminal device comprises a display unit for displaying a color correction control GUI interface for inputting a color correction control instruction.